Hi all
I am a new user to the Twisted framework so this might be a trivial
question, but here goes..
Im trying to use the Web module and adbapi module to create a (rest)
webservice but I am having problems
using the adbapi. As fare as I could figure out, the runInteraction
call spawns a new thread and executes the sql in that, and the
render_GET handler is then returning right away -bummer. I need the
adbapi for its db pool but dont need it to be "blocking" so that I
can return the result of the db interaction as xml.
Hope you guys can help me out or give me some pointers if I am doing
this the wrong way.
Regards
Søren
----- Code ----
from twisted.web import server
from twisted.internet import reactor
from twisted.enterprise import adbapi
from xml.dom.minidom import Document
class Simple(Resource):
isLeaf=True
def __init__(self,opt):
Resource.__init__(self)
self.opt=opt
def render_GET(self,request):
doc=Document()
self.opt.dbpool.runInteraction(self._getUserList,doc)
print "returning result"
return doc.toprettyxml(indent=" ")
def _getUserList(self,txn,doc):
txn.execute("SELECT UserName FROM User ")
res = txn.fetchall()
if (res):
for row in res:
print row
usr=doc.createElement("user")
usr.setAttribute("name","%s" % (row[0] ))
class options:
pass
if __name__ == '__main__':
options.dbpool= adbapi.ConnectionPool("MySQLdb",
host='localhost',db='TrackingPresentation',
user='web', passwd='tingogsager')
site = server.Site(Simple(options))
reactor.listenTCP(8888,site)
reactor.run()
------ Code ------
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